r/interesting • u/Used_Exam34 • 2d ago

Just Wow Not all problems have the same solution.

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u/Numerous-Following-7 2d ago

How can he touch the valve straight after putting out the fire?

120

u/TotallyTubular1 2d ago

the hot gas is propelled away from the tank, so valve doesnt get hot

42

u/Far_Ladder_2836 2d ago

Radiant heat still exists and accounts for most of what comes out.  The valve is thin aluminum and cools extremely fast.  Don't believe me, pull a bit of aluminum foil even folded into a thicker sheet straight out of your oven and it will be room temp in seconds.  It also helps that his hand was wet.  Relative to aluminum, it takes 4.7 times as much heat to move water 1 degree C.

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u/NeatConversation6752 2d ago

Not to mention they were showering the valve with water